英和和英

plug into an outlet

the breech-operating mechanism

to lock the door

put the plug in the outlet

to pick a lock

to lock the door

to a get sliding door into position

wrench off the lock

enclose in a bower

to turn a key in a lock

shut up the hostage in the cellar

the switchgear for the shutter

to fasten the door―make fast the door―secure the door―lock （and bolt） the door

to lock the doors

put an air conditioner in

close with shutters

fasten with a lock

two-way switch

to pick a lock

close with a zipper

to wrench off a lock

to wrench off a lock

a device that is used to open and close the barrel of a gun, called

stack in cords

Keep the door locked!

hold in a locking position

a tricky lock

wrap in a shroud

confine in a cage

flowing locks

a loudspeaker

linear amplifier

a horn speaker

a gramophone

a record for a gramophone

a condenser speaker

an auricular appendage

the vocal organs

a wearable hearing aid

a masterful speaker

a megaphone

an amplification instrument called a {class B amplification circuit}

a megaphone

a loudspeaker that does not produce a magnetic field

a device that muffles sound, called silencer

a speaker who utters a sudden exclamation

sound equipment called an equaliser amplifier

a megaphone

a forceful speaker

headphone

an audio apparatus called power amplifier

an amplifier that increases the amplitude of reproduced sound

an acoustic aid

the treble clef

tinkle a bell

a caisson

the vocalic ablaut

a sound instrument called control amplifier

the conductor of a band

string-instruments